1. Radiative Transfer;Chandrasekhar,1950
2. Chandrasekhar's X and Y equations (1);Mullikin;Trans. Amer. Math. Soc.,1964
3. Application of Wiener–Hopf technique for a new representation of X- and Y-functions;Das;Astrophys. Space Sci.,1979
4. Basic Methods in Transfer Problems;Kourganoff,1952
5. The Mathematics of Radiative Transfer;Busbridge,1960